1. Download the custom map
2. Copy/paste or unzip the map (.bsp) file and the navigation file (.nav) into your c:\Steam\Steamapps\Common\Counter-Strike-Global Offensive\CSGO directory
3. Look for a file called gamemodes\_server.txt in your CSGO directory. If you haven't edited this file before it should show up as "gamemodes\_server\_txt."example
4. Open the file up in Notepad and rename it to gamemodes\_server.txt
5. Scroll down to the bottom of the file to the Map Group section. 6. Look for this section:"mapgroups"
"mapgroups"
{
"mg\_bomb\_se" // mapgroup definition
{
"name" "mg\_bomb\_se"
"maps"
{
"de\_dust\_se" ""
"de\_dust2\_se" ""
"de\_nuke\_se" ""
"de\_train\_se" ""
"de\_inferno\_se" ""
"de\_aztec\_se" ""
"Your Map Here" ""
7. After de\_aztec.se you'll have to add the name of your custom map, using "cs\_kismayo" as an example, so it'll look like
"de\_dust\_se" ""
"de\_dust2\_se" ""
"de\_nuke\_se" ""
"de\_train\_se" ""
"de\_inferno\_se" ""
"de\_aztec\_se" ""
"cs\_kismayo" ""
8. Save the txt file and exit Notepad. Load up CSGO, open up your console with the tilde key (~) and type: map "cs\_kismayo", then hit Enter to confirm
9. It might take a few seconds but the map will load with bots so you can test it out.
Source:
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Also be sure this is map for csgo 2018, as far I remember this tutorial from gamebanana.com was working, have fun